No reason to be uncivil. It's a bit of a stretch to say that "clanker" is related to race in any way. Lots of slurs have nothing to do with race, you're projecting your own bias and prejudices as some sort of universal linguistic truth. In highschool band the percussionists called the wind section "honkers," were they making some vailed n-word allusion? No, it was silly and the wind section were all blowhards so we made fun of them with a little in-group slur.

Anyone who says "clanker" is analogous to any actual racial slur is revealing their belief that AI, in its current state, can be deserving of the same rights that humans have. Which is demonstrably false, given the current state of AI.

Now, true AGI? There's a debate to be had there regarding rights etc. But you better be able to prove that a so-called AGI is truly sentient before you push for that. This isn't Data. There is nothing even remotely close to sentience present in any LLM. I don't even know if AGI is going to be achievable within 100 years. But as far as I'm concerned, AI "slurs" are just blowback against the invasion of AI into everyday life, as is increasingly common. There will be a point where the hard discussion of "does true artificial general intelligence deserve rights" will happen. That time is not now, except as a thought experiment.